Impression-stitch machine.



PATENTED MAY 28. 1907.

J. B. HADAWAY.

IMPRESSION STITCH MACHINE.

APPLICATION FILED APE.25,1904.

2 SHEETS-SHEET 1.

Jfzuerz/ar i m a FATENTED MAY 28, 1907.

2 SHEBTSSHEET 2.

J. B. HADAWAY, IMPRESSION STITCH MACHINE.

.APPLIOAT IOH rum) APE.25,1904.

JOHN B. 'ITA'DAWAY, or BROCKTON, i-ntssAcnusiirrs.

IMPRESSION-STITCH MACHINE.

Specification of Letters Patent.

Patented May 28, 1907.

Application filed April 25, 1904. Serial No. 204,663.

To all whom it nmy concern:

Be it known that l, Jonx B. llAnAwln', a citizen of the l nited States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have. invented cer tain new and useful Improvements in Impression-Stitch Machines; and I do hereby declare the following to be a lull, clear, and enact description of the invention, such as will enable others ski'led in the art to which it appertains to make and use the same.

The present invention relates to impression or imitation stitch machines which are used in the manufacture of boots and shoes to form a series of indentations upon the upper surface of the projcctingcdge of the sole, in order to give this portion of the shoe a finished and pleasing appearance.

)lachines of the class above referred to comprise a rotary indenting wheel provided with teeth so spaced and shaped as to pro duce the desired form ol'imlcntation. In these machines as heretofore usually constructed, a continuous rotary movement in one. direc: tion has been imparted to the indenting wheel so that the wheel acts to feed the work and each portion of the work is acted upon but once by the indenting wheel. It is desirable that the indenting wheel should act more than once on each portion of the work in order that th work may be more deeply indented and the imitation stitches produced be more accurately formed and more highly polished. To secure this result it has been proposed to rotate the indenting wheel intermittently and alterrn-rtcly in opposite directions, the inlermittei'it niovenn-nts in one irection being greater than those in the other, so that the work is led through the machine. This manner of actuating the indenting wheel is objectionable, however, as a backward and l'orwnrd vibrating movement is imparted to the work, which movement renders it dillicult for the operator to proy'ierly guide the shoe and also necessitates the running of the machine at a eom mratively slow-rate of speed.

The object of the present invention is to produce an impression or imitation stitch machine, compr sing an indenting wheel, in which the indenting wheel is caused to act upon each portion of the work a. plurality of times without imparting a backxvard and forward vibrating movement to the work and without interfering with the manipulati m of the :..hoe by the operator and in which the movements which are imparted to the indenting wheel do not preclude the successful operation of the m achine'when running at a high rate of speed.

l ith this object in View, the present invention contemplates the provision in an inrpression or imitation stitch machine comprising an indenting wheel, of means for rolling the wheel back and forth over the work, and for feeding the work in one direction only. By so actuating the indenting wheel and feeding the work the wheel is caused to act upon each portion of the. work a plurality of times in order to properly indent the same and shape and polish the imitation stitches formed and the work can be fed through the machine at a hi h rate of speed. work can be readily manipulated by the operator so as to bepropcrly presented .to the indenting wheel. Broad y considered the invention colitemplatesany suitable means for feeding the work but preferably. the indenting wheel is used for this purpose, means being provided for imparting a work feeding movement to -the wheel in addition tb 'its rolling movements over the wrk. By utilizing the indenting wheel to feed theAyork, the work is fed in a certain and reliable man- Her and at the same time a simpler and more compact machine is produced than when means separate from the wheel are utilized for this urpose.

In or or to vary the number of times each portion of the work is acted upon by the in- Also the denting wheel to suitthe character of the stock being acted upon, means are preferably provided for varying the extent of the feeding movements imparted to the indenting Wheel, and a feature of the invention contemplates the provision in a machine in which an ipdenting wheel is given a rolling movement over the work and a work feeding movement, of means for adjusting the extent of the work feeding movement.

The work feeding movement may be imparted to the indenting wheel in any suitable manner, but is preferably accomplished by stopping the rolling movement of the wheel while moving in one direction, and then continuing the bodily movement of the wheel to feed the work. This manner of imparti ng a work feeding movement to the wheel allows the use of a simple and efficient mechanism and is considered to be a feature of the present invention.

The present invention Will be clearly un- IIC derstood from an inspection of the accompanying drawings in which is illustrated an impression or imitation machine embodying the same in its preferred form.

This machine, in addition to the features of invention above referred to, also embodies certain novel features of construction and arrangement of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description.

Referring to the drawings, Figure l is a view in side elevation of the machine and Fig. 2 is a view in front elevation thereof. Fig. 3 is a'detail showing the pawl and ratchet mechanism.

Described in general terms, the machine illustrated in the. drawings comprises a work su )port upon which the tread surface of the sofe of a shoe being operated upon by the machine rests. Above the work support in osition to bear upon the upper surface 0 the projecting edge of the shoe sole is an indent- 111g wheel which is moved bodily back and rotation of the wheel is stopped by the en.

1 forth over the work in the line of feed. During its backward bodily movement, thewheel rolls over the work, being rotated on its axis by the engagementof the work with the teeth of the wheel. During a portion of its forward bodily movement the indenting wheel also rolls over the work, but before it completes its bodily forward movement the gagement of a pawl with a ratchet wheel mounted to move bodily and rotate with the indenting wheel so that during the last portion of its bodily forward movement the/i11 denting wheel acts to feed the work.

The work support upon which the tread surface of the sole rests during the operation of the machine is indicated at 1 and as shown is frusto-conical in shape and is mounted to rotate u on a stud projecting from a supporting bloc-1E2. The block 2 is pivotally mounted at 3 upon the upper end of a. vertical slide 4 and is rovided with ears extendin on opposite sic es of the 11 per end of the s ide, one of which is provided with an arc-shaped slot through which a securing bolt 5 asses and screws into the upper end of the s ide. This manner of supporting and holding the block 2 allows for an adjustment of the block about the pivot 3 to bring the work supporting surface of the work support 1 into t e desired 0- sition with relation to the indenting whee The slide 4 is mounted to reciprocate in a vertical guideway formed in a, bracket 6 secured to the front portion of the machine frame and is forced u wardly by means of a s ring 7 coiled aroun a roddepending from t e slide and interposed between a shoulder at the lower end of the slide and the u per end-of a sleeve 8 having a screw-threadei engagement with the bracket 6. During the operation of the machine, the spring 7 forces slide 4 and the work support mounted thereon. is limited by a collar 10 clamped to the lower end of the rod depending from the slide. A chain 11 connects the rod with a foot treadle by means of which the slide'and thework support can be depressed by the operator when work is to be inserted in the machine, and an adjustable stop screw 110 mounted in the upper end of the slide and arranged to engage the upper surface of the bracket 6 limits the downward movementof.

the slide and work support.

The indenting wheel is indicated at 1 2 and. is secured by means of a screw to the forward end of a shaft 13 journal d in the lower end,

of a lever H pivotally mounted about midi way its ends upon a stud 1'5 projecting from the front ortion of the machine frame. The

upper em of the lever 14 is slotted and in the slot are mounted two blocks 16 in whichis;

formed a bearing for an eccentric pin 17 upon the forward 'end of a. driving shaft 18 journaled' in hearings in the u r. rtion of. the;

P0 (1 f th e rear en 0 e .ioo

machine frame. Upon t shaft 18 are mounted fast and loose p'ulle s l9 and 20 over which the driving belt of -t e1 machine passes. When the. machine is in operation aconstant rotation in one direc-.'

tion is imparted to the shaft 18, and throu theeccentric pin 17 and lever 14 a bodily forward and backward movement is im arted tip the indenting wheel in the line 0 feed ios e shaft 13 is'mounted to rotate freely in the 1 lower end of the lever 14 so that during the t 'bodily backward and forward movements of the indenting wheel it is rotated by the ongagement of the teeth of the indenting wheel with the work and the wheel is caused to roll Y back and forth on the work.

While the indenting wheel is rolling over the work the work reinains stationary and in order t9 cause the work to be fed to present successive portions of the work to the action of the indenting wheel means are provided for sto ping the rolling movements of the wheel uring its bodily movement in one di rection. To this end a ratchet wheel 21 is rigidly secured to the rear and of the shaft 13, so I,

'ap to rotate andmove bodily with the indentingwheel. andupol the fra me of the machine is pivotally mounted t pawl .22 which IS pressed towardthe rate-11 wheel by means of a leaf spring 23. m pawzi 22 is )vided upon its under side with k projection 24 with which a pin 25 projecting from the lever 14 is arirs 'ranged'to engage during the vibrating movements of the lever, the arrangement of the pin and projection 24, being such that the pawl is held out of engagement with the teeth of the ratchet wheel during a portion of the backward I and forward bodily movements of the indenting wheel, and is allowed to move into on agement with the teeth of the ratchet whee before the indenting wheel completes its bodily forward movement. As soon as the pawl engages a tooth of the ratchet wheel the rolling movement of the indenting wheel is stop, ed as will be apparent from an inspection 0 Fig. 2, and during the continued bodily forward movement or the indenting wheel a feeding movement is imarted to the work. This feeding movement lsdue to the continued forward bodily movement of the indenting wheel and to a'rotation of the wheel produced by the engages ment of the pawl with the ratchet wheel.

It will be evident that the indenting wheel will act'upon each portion of the work a plurality of times, the number of times each portion of the work is acted upon depending upon the extent of the feeding movements imparted to the work. It is desirable that means be provided for varying the number of times each portion of the work is acted upon by the indenting tool to adapt the machine for satisfactory operation upon different qualities of stock and upon stock in different conditionsof temper. To this end, the mud 22 is adjustably secured to the frame of machine by means of a pivot )in 26 passing through a slot in the frame o the machine.

By adjusting the pin 26 the pawl can be caused to engage the ratchet wheel at different points in the bodily hrrward movement of the indenting wheel and thereby the extent of the feeding movement. imparted to the work varied as desired.

it will be evident that in the machine illustrated 'in the drawings the operation of antomatically feeding the work may he eliminated entirely, if for any reason it is desired to operate the machine in this manner. by adjusting the pawl 22 so that it is held out of engagement with the ratchet wheel during the entire )odily forward movementof the indenting hccl. ln such case the indenting wheel will roll backward and forward over .the work without imparting any feeding movement thereto, and the work will be fed through the machine by the operator.

the

having been specifically described, what is claimed as new is 1. A machine for making impression or imitation stitches, having, in combination, a work support, an indenting wheel, and means for imparting to the wheel a rolling'movement over the work and a work feeding move ment, substantially as described.

2. A machine for making impression or imitation stitches, having, in combination. a work support. an indenting wheel, means for rolling the wheel back and forth over the work and for feeding the work in one direction only, substantially as described.

3. A machine for making impression or imitation stitches, having, in combination, a work support, an indenting wheel mounted to be rotated by the engagement of the wheel with the work, and means for feeding the work and for moving the wheel bodily back and forth over the work while in contact therewith to cause the wheel to roll over the work alternately in opposite directions.

4. A machine for making impression or imitation stitches, having. in combination, a work support. an indenting wheel, means for moving the wheel bodily back and forth over the work while in contact therewith to cause thcnvhcel to roll over the work alternately in opposite directions, and means for stopping the rolling movement of the wheel during its bodily movement in one direction to causethe wheel to feed the work, substantially as described.

5. A machine for making impression or imitation stitches, having. in combination, a work support, an indenting whccl, means for moving the indenting wheel bodily back and forth over the work while in contact therewith, a ratchet whccl mounted to rotate and movebodily with the indenting wheel, a pawl and means for moving the pawl into and out of engagement with the ratchet whccl to cause the indenting wheel to feed the work during its bodily movement in one direction, substantially as described.

6. A machine for making" impression or imitation stitches, having, in combination, a work sup mrt, an indenting wheel means for moving t e indenting wheel bodily back and 'forth over the work while in contact therewith, a ratchet wheel mountedto rotate and move bodily with the indenting wheel, a pawl mounted on a fixed support arrao ed to engage the ratchet wheel and cause t ie indenting wheel to feed the work during its bodily movement in one direction, and means for adjusting the pawl to vary the extent of the feeding movement imparted to the indenting wheel, substantially as described.

7. A machine for making impression or feeding over the work and a work feeding movement, and means for adjusting the extent ofthe work feeding movement, substantially as described.

S. A machine for making impression or' imitation stitches, having, in combination, a work support, an indenting wheel, means for imparting to the wheel rolling movements over the work alternately in opposite directions, and work feeding movements; substantially as described.

9. A machine formaking impression or imitation stitches, having, in combination, a work support, an indenting wheel,means for imparting to the wheel rolling movements over the work alternately in opposite directions, and work feeding movements, and g means for adjusting the extent of the work movement-s; substantially as described.

10. A machine for making impression or imitation stitches, having, in combination, a work support, anindenting wheel, means for moving the wheel bodily back and forth over the work while in contact therewith to cause the wheel to roll over the work alternately in opposite directions, means for sto ping the rolling movement of the wheel dhring its the wheel to feed the work, and means for varying the point in the bodily movement'iof stopped to adjust the extent of the feedin movement, substantially as described. f

11. A machine for making impression or imitation stitches, having, in combination," a work support, an indenting wheel, and

wheel back and forth over the work, substantially as described. Y

In testimony whereof I afiix my signature, in presence of two witnesses.

JOHN B. HADAVVAY. Witnesses:

FRED 0. FISH, ALFRED I-I. I IILDRE'IH,

bodily movement in one direction to cause,

means for feeding the work and for rolling thethe wheel at which its rolling movement is 

